Materials :
· 30 inch tube of cardboard
· Giant Crayola piggy bank
· Red, blue and gray spray paint
· 2 plastic shopping bags
· 12 inches of bungie cord
· Hot glue gun
· Nickel roller
· Paper clip
· Chunk of styrofoam
· Sheet of wood
· Piece of paper
· Chunk of wood
· Piece of straw
· Baby powder
· Fleecy sheet
· Engines (B and C)
· Scotch tape